Plough anchor



FIG. 1 is an upper perspective view of a plough anchor showing my newdesign;

FIG. 2 is a lower perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof:

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The ornamental design for a plough anchor, as shown and described.